MF400K04F3-BP

Overview

The MF400K04F3-BP is a silicon Fast Recovery Epitaxial Diode (FRED) module manufactured by Micro Commercial Components. It features a single configuration with screw mount installation in an F3 package. The device supports a maximum repetitive reverse voltage of 400 V and a maximum average forward current of 400 A per module at a case temperature of 125°C. Key electrical parameters include a typical forward voltage of 1.1 V at 200 A, a maximum junction temperature of +150°C, and a power dissipation rating of 2080 W. The module exhibits ultrafast reverse recovery characteristics with low loss.

Feature Summary

• Soft reverse recovery characteristics designed to minimize switching noise
• Ultrafast reverse recovery time combined with low reverse recovery loss
• Low forward voltage drop for improved efficiency
• High surge current capability suitable for demanding transient loads

Applications

• Inversion Welder
• Uninterruptible Power Supply (UPS)
• Plating Power Supply
• Ultrasonic Cleaner and Welder
• Power Factor Correction (PFC) Circuit

Procurement Notes

Verify the authenticity of the MF400K04F3-BP by purchasing exclusively from Micro Commercial Components or their authorized distributors to ensure traceability and quality standards. Confirm that the specific ordering suffix matches the required RoHS compliance status. Check the latest datasheet revision for any updates to mechanical dimensions or thermal characteristics before finalizing procurement specifications.

Selection Notes

Select this component for high-current applications requiring fast switching speeds and low conduction losses. Ensure the cooling system maintains the case temperature within limits to support the 400 A average current rating. Verify that the circuit design accommodates the specified surge current capabilities and reverse voltage ratings. Consider the thermal impedance characteristics when designing the heat sink interface for optimal performance.

Part Context

This part belongs to the MF400K series of FRED modules from Micro Commercial Components. It utilizes silicon technology and is housed in a low-inductance F3 package designed for screw mounting. The module is engineered for high-power conversion applications where rapid recovery and high current handling are critical requirements.

Replacement Considerations

Consult official MCC documentation for verified substitute part numbers. Ensure any replacement matches the 400 V reverse voltage, 400 A current rating, and F3 package dimensions. Verify compatibility with existing thermal management solutions and mounting torque specifications.

FAQ

What is the recommended mounting torque for the M6 screws?

The recommended mounting torque for the M6 screws is between 3 and 4.7 N·m.

How does the reverse recovery time vary with junction temperature?

At TJ=25°C, the typical reverse recovery time is 135 ns, while at TJ=125°C, it increases to 210 ns under specified test conditions.

What is the maximum operating junction temperature?

The maximum operating junction temperature range is -40°C to +150°C.